Sping POJO中如何添加验证规则和验证消息提示

	@NotNull
	private long id;

	@NotNull
	@Size(min = 2, max = 30,message="姓名在2~30个字符之间")
	private String name;

	@NotNull
	@Min(message="年龄至少15岁",value=15)
	private Integer age;

	@NotEmpty
	@Email(message="邮箱格式不对")
	private String email;